Mar 16, 2024 · Global distribution of organohalide-respiring bacteria in sewage sludge. The genera Dehalococcoides, Dehalogenimonas, and Dehalobacter as well as uncultivated Dehalococcoidia lineages from terrestrial environments are usually considered OHRB owing to the presence of RDase genes in their genomes; therefore, their distribution was investigated by mining 1186 sewage sludge microbiomes from 269
Aug 5, 2020 · The adoption of sewage sludge as an agricultural management strategy to improve soil properties and crop production is attracting great interest. Despite many positive effects on soil inorganic and organic components reported for different soil types, little information is available on sewage sludge application on Mediterranean soils, as well as on its use at different dose rates. The
Management of Sewage Sludge for Environmental Sustainability. Jan 1, 2022 · Sewage sludge management is important for avoiding emissions and mitigating negative effects on the atmosphere, human health, and long-term development.
Apr 1, 2024 · Two feed stocks, sewage sludge (SS) and straw pellets (SP), were used for composting. Dewatered SS was collected from a wastewater treatment plant located in a small town in the Czech Republic. The sewage treatment plant had a load of 3500 equivalent inhabitants, and was a mechanical-biological treatment plant with aerobic sludge stabilization
Nov 1, 2020 · Similarly, sludge composting has been used in 25 out of 27 countries in Europe, which accounted for as much as 42% of total sludge production in 1995 (3 million Mg of dry matter in suspend solids), and it quickly increased to 59% in 2010 (Collivignarelli et al., 2019), finally being used for agricultural utilization.
Jan 1, 2000 · The sludge is composted for about 3-6 months by combining, active mixing, aeration and stabilization (maturation) sewage sludge, green waste and other organic wastes in open composting piles
Mar 1, 2014 · The properties of MSS were referred to MSS I (87.98% water content, 43.56% organic matter, and 4.26% total nitrogen), and the MSS reduction was 85% for the comprehensive recycling and 63% was
Nov 18, 2018 · Oxygen is an important parameter for organic-waste composting, and continuous control of the oxygen in a composting pile may be beneficial. The oxygen consumption rate can be used to measure the degree of biological oxidation and decomposition of organic matter. However, without having a real-time o
4 days ago · Husam Abu Hajar & Abdelmajeed Adam Lagum. Abstract. In this work, a techno-economic feasibility and environmental sustainability assessment of the aerobic composting process was conducted assuming that 20,000 tons of sewage sludge are produced annually at the As-Samra plant, Jordan.
Jan 1, 2023 · The treatment and disposal of sewage sludges is an issue of high concern, given the role of sewage sludge in environmental pollution, risks to human health and high cost of its disposal. Under current legislation, sludge can be disposed of in agriculture after a stabilization process, such as composting. As a result of this process, organic
Apr 25, 2020 · A ratio of 3∶1 (wet basis) resulted in an increase of composting temperature in two days from 13°C up to 67°C and maintained high temperatures of more than 55°C over some time. In addition
Oct 19, 2023 · Sewage sludge treatment and disposal remains a challenging problem. Composting of sewage sludges is gaining increasing attention due to its cost-effectiveness, operation convenience, advantages in lifecycle management, and low greenhouse gas emissions. Disadvantages, such as long reaction time, significant land area occupation requirement, potential risks of residual heavy metals, and emerging
Jan 1, 2022 · Global demand of management of Sewage and sludge is increasing fast because of the ever-increasing population pressure as well as environmental constraints owing to deteriorate quality of the soil as well as ecosystem. Management of these waste can be effectively
Composting is controlled fermentation that converts organic matter aerobically and produces stable humic and pre-humic compounds (figure 1). Aeration will only be effective if the medium is air-permeable. Dewatered sludge often has a low porosity; a bulking agent has to be added, usually in the form of a carbonaceous support (20% of the mixture
Apr 1, 2023 · One of the most pressing environmental problems worldwide is sewage sludge (SS) management. Every year, wastewater volume increases and thus, the amount of SS produced increases as well. The disposal of SS in landfills, as practiced in many countries, is not a sustainable solution. Instead, SS, rich in organic matter and other nutrients, can be used as an alternative soil additive or